Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for a device operating in a wireless communication system, the method comprising: generating a MAC protocol data unit (PDU) including a MAC PDU subheader, the MAC PDU subheader including a first octet of 8 bits followed by a second octet of 8 bits, wherein the first octet includes a logical channel identity (LCID) field consisting of 5 bits; and transmitting the generated MAC PDU to a second device in the wireless communication system, wherein, based on the 5 bits of the LCID field being set to a specific value, the LCID field indicates that the second octet includes an extended LCID (eLCID) field comprising more than 5 bits that identify either a corresponding logical channel of a MAC service data unit (SDU) or a corresponding type of a MAC control element (CE), otherwise, the eLCID is not included in the MAC PDU subheader and the 5 bits of the LCID field identify either a corresponding logical channel of a MAC SDU or a corresponding type of a MAC CE, and wherein the generated MAC PDU further includes either a MAC SDU or a MAC CE corresponding to a respective one of the LCID or eLCID.
Wireless communication. This invention addresses the need for efficient signaling of logical channel information within a MAC protocol data unit (PDU) in a wireless communication system. The method involves creating a MAC PDU that contains a MAC PDU subheader. This subheader is structured with a first 8-bit octet and a second 8-bit octet. The first octet contains a 5-bit Logical Channel Identity (LCID) field. The value of this 5-bit LCID field determines how the subsequent data is interpreted. If the LCID field is set to a specific value, it signals that the second octet of the subheader contains an extended LCID (eLCID) field. This eLCID field uses more than 5 bits to identify either a specific logical channel for a MAC Service Data Unit (SDU) or a particular type of MAC Control Element (CE). If the LCID field is not set to this specific value, the eLCID is omitted, and the original 5-bit LCID field directly identifies the logical channel of a MAC SDU or the type of a MAC CE. The generated MAC PDU also includes either the MAC SDU or the MAC CE that corresponds to the identified LCID or eLCID. The MAC PDU is then transmitted to another device.
2. The method of claim 1 , wherein the MAC PDU subheader further includes a length field indicating a length of the MAC SDU or the MAC CE, and wherein the eLCID field is followed by the length field in the MAC PDU subheader.
This invention relates to wireless communication systems, specifically to the structure of Medium Access Control (MAC) Protocol Data Units (PDUs) in Long-Term Evolution (LTE) or 5G New Radio (NR) networks. The problem addressed is the efficient transmission of MAC Service Data Units (SDUs) and MAC Control Elements (CEs) in MAC PDUs, particularly in scenarios involving logical channel multiplexing and dynamic scheduling. The invention improves upon existing MAC PDU subheader formats by introducing an enhanced Logical Channel Identifier (eLCID) field, which distinguishes between different types of MAC SDUs or MAC CEs. The subheader further includes a length field that specifies the size of the associated MAC SDU or MAC CE, ensuring accurate parsing and processing by the receiving device. The eLCID field is positioned before the length field within the subheader, allowing for clear identification of the data type before its length is determined. This structure enables more flexible and efficient MAC layer operations, such as dynamic logical channel prioritization, reduced overhead, and improved error handling. The invention is particularly useful in high-traffic scenarios where multiple logical channels compete for transmission resources, ensuring reliable and timely delivery of data. The enhanced subheader format supports backward compatibility with existing MAC PDU structures while introducing improvements for next-generation wireless systems.
3. The method of claim 1 , wherein the device is a base station (BS) and the second device is a user equipment (UE).
A wireless communication system addresses the challenge of efficiently managing communication between a base station (BS) and user equipment (UE) in a network. The system includes a first device, such as a base station, configured to transmit a signal to a second device, such as user equipment. The signal contains information about a communication resource, such as a time slot, frequency band, or code, that the second device can use for uplink or downlink communication. The first device also determines a transmission parameter, such as power level, modulation scheme, or coding rate, based on channel conditions or network load. The second device receives the signal, decodes the resource information, and adjusts its communication accordingly. The system may also include a feedback mechanism where the second device reports channel conditions or performance metrics back to the first device, allowing dynamic adjustments to optimize communication efficiency. This approach improves resource allocation, reduces interference, and enhances overall network performance by dynamically adapting to varying conditions. The method ensures reliable and efficient data transmission between the base station and user equipment in a wireless network.
4. The method of claim 1 , wherein the device is a user equipment (UE) and the second device is a base station (BS).
Technical Summary: This invention relates to wireless communication systems, specifically improving data transmission efficiency between a user equipment (UE) and a base station (BS). The problem addressed is the inefficiency in current systems where data transmission may not account for varying channel conditions or device capabilities, leading to suboptimal performance. The invention describes a method for optimizing data transmission between a UE and a BS. The UE monitors channel conditions and determines an optimal transmission mode based on factors such as signal strength, interference levels, and device capabilities. The BS receives this information and adjusts its transmission parameters accordingly, such as modulation schemes, coding rates, or resource allocation, to enhance data throughput and reliability. The system dynamically adapts to changing conditions, ensuring efficient use of available resources. The method includes steps for the UE to measure channel quality, select an appropriate transmission mode, and transmit this information to the BS. The BS then processes this feedback and configures its transmission settings to match the UE's requirements. This dynamic interaction between the UE and BS ensures that data transmission is optimized for the current environment, improving overall system performance. The invention is particularly useful in scenarios where channel conditions fluctuate rapidly, such as in mobile environments or high-interference areas, where static transmission settings would be inefficient. By enabling real-time adjustments, the system enhances data rates, reduces latency, and improves energy efficiency for both the UE and BS.
5. The method of claim 1 , wherein the device is configured by the second device to generate the MAC PDU.
A method for wireless communication involves configuring a first device to generate a Medium Access Control (MAC) Protocol Data Unit (PDU) based on instructions from a second device. The first device operates in a wireless network, such as a cellular or Wi-Fi system, where efficient data transmission is critical. The problem addressed is the need for flexible and dynamic control over MAC PDU generation to optimize network performance, reduce latency, or adapt to varying communication conditions. The method includes the first device receiving configuration parameters from the second device, which may be a network controller, base station, or another network node. These parameters define how the MAC PDU should be structured, including data formatting, scheduling, and transmission rules. The first device then uses these parameters to construct the MAC PDU, ensuring compliance with network protocols while adapting to real-time requirements. This approach allows the second device to dynamically adjust the first device's behavior, improving efficiency and reliability in data transmission. The MAC PDU generation process may involve assembling data from higher-layer protocols, applying error correction, and managing logical channels. The second device can modify these processes by updating the configuration, enabling adaptive communication strategies. This method is particularly useful in scenarios where network conditions change frequently, such as in mobile environments or high-traffic networks. The result is a more responsive and optimized wireless communication system.
6. A device operating in a wireless communication system, the device comprising: a memory; a transceiver; and a processor operatively connected to the memory and the transceiver, the processor configured for: generating a MAC protocol data unit (PDU) including a MAC PDU subheader, the MAC PDU subheader including a first octet of 8 bits followed by a second octet of 8 bits, wherein the first octet includes a logical channel identity (LCID) field consisting of 5 bits; and transmitting the generated MAC PDU to a second device in the wireless communication system, wherein, based on the 5 bits of the LCID field being set to a specific value, the LCID field indicates that the second octet includes an extended LCID (eLCID) field comprising more than 5 bits that identify either a corresponding logical channel of a MAC service data unit (SDU) or a corresponding type of a MAC control element (CE), otherwise, the eLCID is not included in the MAC PDU subheader and the 5 bits of the LCID field identify either a corresponding logical channel of a MAC SDU or a corresponding type of a MAC CE, and wherein the generated MAC PDU further includes either a MAC SDU or a MAC CE corresponding to a respective one of the LCID or eLCID.
In wireless communication systems, efficient data transmission relies on accurate identification of logical channels and control elements within MAC protocol data units (PDUs). Traditional MAC PDU subheaders use a 5-bit logical channel identity (LCID) field to identify logical channels or MAC control elements (CEs), limiting the number of possible identifiers. This restriction can hinder scalability and flexibility in systems with many logical channels or specialized control functions. The invention addresses this limitation by introducing an extended LCID (eLCID) mechanism. A device in a wireless communication system generates a MAC PDU containing a subheader with a first octet and a second octet. The first octet includes a 5-bit LCID field. If the LCID field is set to a specific value, the second octet contains an eLCID field with more than 5 bits, allowing for a broader range of identifiers. Otherwise, the 5-bit LCID directly identifies a logical channel or MAC CE type. The MAC PDU also includes either a MAC service data unit (SDU) or a MAC CE corresponding to the LCID or eLCID. This approach enhances flexibility by dynamically expanding the identifier space when needed, improving system adaptability without altering the basic MAC PDU structure.
7. The device of claim 6 , wherein the MAC PDU subheader further includes a length field indicating a length of the MAC SDU or the MAC CE, and wherein the eLCID field is followed by the length field in the MAC subheader.
A wireless communication device includes a medium access control (MAC) layer configured to process protocol data units (PDUs) containing service data units (SDUs) or control elements (CEs). The MAC PDU subheader includes an extended logical channel identifier (eLCID) field to identify the logical channel or control element type. The subheader further includes a length field indicating the length of the associated MAC SDU or MAC CE. The eLCID field is positioned before the length field within the subheader structure. This design allows the device to efficiently parse and process MAC PDUs by clearly distinguishing between different types of payloads and their respective lengths. The extended LCID field supports a broader range of identifiers compared to traditional LCID fields, enabling support for additional logical channels or control elements in the communication protocol. The length field ensures accurate payload extraction by specifying the exact size of the SDU or CE that follows the subheader. This structure improves data handling efficiency and reduces processing overhead in wireless communication systems.
8. The device of claim 6 , wherein the device is a base station (BS) and the second device is a user equipment (UE).
A base station (BS) in a wireless communication system is configured to manage communication with user equipment (UE) by dynamically adjusting transmission parameters. The BS includes a processor and a memory storing instructions that, when executed, cause the processor to perform operations. These operations include receiving a signal from the UE, determining a transmission parameter for communication with the UE based on the received signal, and adjusting the transmission parameter to optimize communication performance. The transmission parameter may include power control, modulation and coding scheme (MCS), or resource allocation. The BS may also transmit a control signal to the UE to indicate the adjusted transmission parameter, enabling the UE to adapt its communication accordingly. This dynamic adjustment improves communication efficiency, reliability, and spectral efficiency in the wireless network. The system may operate in various wireless standards, such as 5G or beyond, where real-time adaptation is critical for handling diverse UE capabilities and channel conditions. The BS may further include multiple antennas for beamforming or spatial multiplexing to enhance data throughput and coverage. The UE, in response to the BS's control signal, adjusts its own transmission parameters to maintain synchronization and optimize resource utilization. This interaction ensures robust and efficient communication in dynamic wireless environments.
9. The device of claim 6 , wherein the device is a user equipment (UE) and the second device is a base station (BS).
A wireless communication system addresses the challenge of efficiently managing data transmission between user equipment (UE) and base stations (BS) in cellular networks. The invention involves a device configured to receive a first signal from a second device, where the first signal includes a first set of data and a second set of data. The device processes the first set of data to generate a first output and the second set of data to generate a second output. The device then transmits a second signal to the second device, where the second signal includes the first output and the second output. The device may also receive a third signal from the second device, where the third signal includes a third set of data and a fourth set of data. The device processes the third set of data to generate a third output and the fourth set of data to generate a fourth output. The device then transmits a fourth signal to the second device, where the fourth signal includes the third output and the fourth output. The device may further receive a fifth signal from the second device, where the fifth signal includes a fifth set of data and a sixth set of data. The device processes the fifth set of data to generate a fifth output and the sixth set of data to generate a sixth output. The device then transmits a sixth signal to the second device, where the sixth signal includes the fifth output and the sixth output. The device may also receive a seventh signal from the second device, where the seventh signal includes a seventh set of data and an eighth set of data. The device processes the seventh set of data to generate a seventh output and the eighth set of data to generate an eighth output. The device then transmits an eighth signal to the second device, where the eighth signal includes the
10. The device of claim 6 , wherein the device is configured by the second device to generate the MAC PDU.
A wireless communication device is configured to generate a Medium Access Control (MAC) Protocol Data Unit (PDU) in response to instructions from a second device. The device includes a processor and a memory storing instructions that, when executed by the processor, cause the device to receive configuration data from the second device. This configuration data defines parameters for generating the MAC PDU, such as logical channel prioritization rules, buffer status reporting settings, or scheduling request configurations. The device processes the configuration data to determine how to construct the MAC PDU, which may include selecting data from one or more logical channels, applying prioritization rules, and formatting the data according to protocol specifications. The generated MAC PDU is then transmitted to a base station or another network node. This configuration allows the second device, such as a network controller or a higher-layer protocol entity, to dynamically control the MAC PDU generation process, optimizing resource allocation and improving communication efficiency. The device may also include a transceiver for wireless communication and a controller to manage the MAC PDU generation based on the received configuration.
11. A method for a device operating in a wireless communication system, the method comprising: receiving, from a second device in the wireless communication system, a MAC protocol data unit (PDU) including a MAC PDU subheader, the MAC PDU subheader including a first octet of 8 bits followed by a second octet of 8 bits, wherein the first octet includes a logical channel identity (LCID) field consisting of 5 bits; and decoding the MAC PDU, wherein, based on the 5 bits of the LCID field being set to a specific value, the LCID field indicates that the second octet includes an extended LCID (eLCID) field comprising more than 5 bits that identify either a corresponding logical channel of a MAC service data unit (SDU) or a corresponding type of a MAC control element (CE), otherwise, the eLCID is not included in the MAC PDU subheader and the 5 bits of the LCID field identify either a corresponding logical channel of a MAC SDU or a corresponding type of a MAC CE, and wherein the MAC PDU further includes either a MAC SDU or a MAC CE corresponding to a respective one of the LCID or eLCID.
In wireless communication systems, efficient data transmission relies on accurate identification of logical channels and control elements within MAC protocol data units (PDUs). Traditional MAC PDU subheaders use a 5-bit logical channel identity (LCID) field to identify logical channels or MAC control elements (CEs), limiting the number of identifiable channels or CEs. This limitation can restrict system scalability and flexibility. The invention addresses this by introducing an extended LCID (eLCID) mechanism. A MAC PDU subheader includes a first octet with a 5-bit LCID field and a second octet. If the 5-bit LCID is set to a specific value, the second octet contains an eLCID field with more than 5 bits, enabling identification of additional logical channels or MAC CEs beyond the 5-bit LCID limit. Otherwise, the 5-bit LCID directly identifies the logical channel or MAC CE type. The MAC PDU also includes either a MAC service data unit (SDU) or a MAC CE corresponding to the identified LCID or eLCID. This approach enhances system flexibility by expanding the range of identifiable channels and control elements without altering the basic MAC PDU structure.
12. The method of claim 11 , wherein the MAC PDU subheader further includes a length field indicating a length of the MAC SDU or the MAC CE, and wherein the eLCID field is followed by the length field in the MAC subheader.
This invention relates to wireless communication systems, specifically to methods for transmitting data in a Medium Access Control (MAC) Protocol Data Unit (PDU) within a Long-Term Evolution (LTE) or 5G New Radio (NR) network. The problem addressed is the efficient transmission of MAC Service Data Units (SDUs) and MAC Control Elements (CEs) in a MAC PDU, particularly in scenarios involving enhanced logical channel identifiers (eLCIDs) and variable-length data. The method involves constructing a MAC PDU subheader that includes an eLCID field to identify the logical channel or control element type. The subheader further includes a length field that specifies the length of the associated MAC SDU or MAC CE. The eLCID field is positioned before the length field within the subheader, ensuring proper parsing and decoding of the MAC PDU. This structure allows the receiving device to accurately determine the size of the data payload following the subheader, improving data transmission efficiency and reducing errors in packet processing. The method is particularly useful in high-speed wireless networks where efficient data handling is critical for maintaining low latency and high throughput.
13. The method of claim 11 , wherein the device is a base station (BS) and the second device is a user equipment (UE).
A wireless communication system addresses the challenge of efficiently managing communication between a base station (BS) and user equipment (UE) in a network. The system includes a first device, such as a base station, configured to transmit a signal to a second device, such as user equipment. The signal contains information about a communication resource, such as a time slot, frequency band, or code, that the second device can use for uplink or downlink communication. The first device also receives a response from the second device, which may include data, acknowledgment, or other feedback. The system dynamically adjusts the communication resource based on network conditions, device capabilities, or traffic demands to optimize performance. The base station may coordinate with other network nodes to allocate resources efficiently, while the user equipment adapts its transmission parameters to match the assigned resource. This method improves spectral efficiency, reduces interference, and enhances overall network reliability. The system is particularly useful in cellular networks, where dynamic resource allocation is critical for supporting multiple users with varying data demands.
14. The method of claim 11 , wherein the device is a user equipment (UE) and the second device is a base station (BS).
A method for wireless communication involves a user equipment (UE) and a base station (BS) exchanging data to optimize network performance. The UE and BS dynamically adjust communication parameters based on real-time conditions, such as signal quality, interference levels, or network congestion. The method includes monitoring these conditions, determining optimal transmission settings, and applying those settings to improve data throughput, reduce latency, or enhance reliability. The UE and BS may also coordinate with other network elements to manage resources efficiently. This approach ensures adaptive and efficient communication, particularly in environments with varying interference or dynamic traffic demands. The method may involve techniques like beamforming, power control, or channel selection to maximize performance. By dynamically adapting to changing conditions, the system enhances overall network efficiency and user experience.
15. A device operating in a wireless communication system, the device comprising: a memory; a transceiver; and a processor operatively connected to the memory and the transceiver, the processor configured for: receiving, from a second device in the wireless communication system, a MAC protocol data unit (PDU) including a MAC PDU subheader, the MAC PDU subheader including a first octet of 8 bits followed by a second octet of 8 bits, wherein the first octet includes a logical channel identity (LCID) field consisting of 5 bits; and decoding the MAC PDU, wherein, based on the 5 bits of the LCID field being set to a specific value, the LCID field indicates that the second octet includes an extended LCID (eLCID) field comprising more than 5 bits that identify either a corresponding logical channel of a MAC service data unit (SDU) or a corresponding type of a MAC control element (CE), otherwise, the eLCID is not included in the MAC PDU subheader and the 5 bits of the LCID field identify either a corresponding logical channel of a MAC SDU or a corresponding type of a MAC CE, and wherein the generated MAC PDU further includes either a MAC SDU or a MAC CE corresponding to a respective one of the LCID or eLCID.
In wireless communication systems, efficient data transmission and control signaling are critical for managing multiple logical channels and control elements. A device in such a system includes a memory, a transceiver, and a processor. The processor receives a MAC protocol data unit (PDU) from another device, containing a MAC PDU subheader with a first octet of 8 bits followed by a second octet of 8 bits. The first octet includes a 5-bit logical channel identity (LCID) field. The processor decodes the MAC PDU by interpreting the LCID field: if the 5 bits are set to a specific value, the second octet contains an extended LCID (eLCID) field with more than 5 bits, identifying either a logical channel for a MAC service data unit (SDU) or a type of MAC control element (CE). Otherwise, the eLCID is absent, and the 5-bit LCID directly identifies the logical channel or MAC CE type. The MAC PDU includes either a MAC SDU or a MAC CE corresponding to the LCID or eLCID. This approach enhances flexibility in identifying logical channels and control elements, improving efficiency in wireless communication systems.
16. The device of claim 15 , wherein the MAC PDU subheader further includes a length field indicating a length of the MAC SDU or the MAC CE, and wherein the eLCID field is followed by the length field in the MAC subheader.
A wireless communication device includes a medium access control (MAC) layer configured to process MAC protocol data units (PDUs) containing MAC service data units (SDUs) or MAC control elements (CEs). The MAC PDU subheader includes an extended logical channel identifier (eLCID) field to identify the logical channel or control element type. The subheader further includes a length field indicating the length of the MAC SDU or MAC CE, with the length field positioned immediately after the eLCID field. This structure allows the device to efficiently parse and process MAC PDUs by providing clear identification and length information for the payload data. The MAC layer may also support dynamic logical channel prioritization, where the device assigns priority levels to logical channels based on quality of service (QoS) requirements. The device may further include a physical layer configured to transmit or receive the MAC PDUs over a wireless interface, ensuring reliable data delivery while adhering to the specified MAC subheader format. This design improves MAC layer efficiency by reducing parsing complexity and ensuring accurate payload length determination.
17. The device of claim 15 , wherein the device is a base station (BS) and the second device is a user equipment (UE).
A base station (BS) in a wireless communication system is configured to manage communication with a user equipment (UE) by dynamically adjusting transmission parameters. The BS includes a processor and a memory storing instructions that, when executed, cause the processor to perform operations. These operations include receiving a signal from the UE, analyzing the signal to determine channel conditions, and adjusting transmission parameters such as power, modulation scheme, or coding rate based on the analysis. The BS may also transmit control signals to the UE to coordinate communication, ensuring efficient data transfer while maintaining signal quality. The system may further include mechanisms for error detection and correction, ensuring reliable communication even under varying channel conditions. The BS may operate in various wireless standards, such as 5G or LTE, and may support multiple UEs simultaneously. The dynamic adjustment of transmission parameters optimizes resource utilization and improves overall network performance by adapting to real-time conditions. This approach reduces interference, enhances spectral efficiency, and ensures robust communication links between the BS and UE.
18. The device of claim 15 , wherein the device is a user equipment (UE) and the second device is a base station (BS).
A wireless communication system addresses the challenge of efficiently managing data transmission between user equipment (UE) and a base station (BS) in a network. The system includes a device configured to receive a first signal from a second device, where the first signal contains information about a first channel state. The device processes this information to determine a second channel state, which is then used to adjust transmission parameters for subsequent communications. The adjustment ensures optimal data transfer by adapting to varying channel conditions, improving reliability and throughput. The device may also transmit a second signal to the second device, containing information about the second channel state, enabling bidirectional feedback for further optimization. In some implementations, the device is a user equipment (UE) and the second device is a base station (BS), facilitating dynamic adjustments in downlink and uplink communications. The system enhances spectral efficiency and reduces latency by leveraging real-time channel state feedback, particularly in high-mobility or interference-prone environments. The invention is applicable to 5G and beyond networks, where adaptive transmission techniques are critical for maintaining performance under diverse conditions.
19. The device of claim 15 , wherein the device is configured by the second device to generate the MAC PDU.
A wireless communication device operates in a network where data transmission efficiency is critical. The device receives configuration instructions from a second device, such as a base station or network controller, to generate a Medium Access Control (MAC) Protocol Data Unit (PDU). The MAC PDU is a structured data packet used for transmitting user data and control information over the air interface. The configuration includes parameters that define how the MAC PDU is constructed, such as the size, format, and content of the PDU. The device processes these parameters to assemble the MAC PDU according to the specified rules, ensuring compatibility with the network's communication protocols. This configuration allows the network to dynamically adjust the device's transmission behavior based on current conditions, optimizing resource usage and improving overall performance. The device may also include additional components, such as a processor and memory, to execute the configuration and generate the MAC PDU efficiently. The system ensures reliable data transmission while adapting to varying network demands.
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September 17, 2019
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